We played well, did everything to win but conceded three strange goals. It's difficult to explain this defeat. Porto were the better side, we created many chances to score. Sometimes the best team doesn't win.

Only the team that scores deserves to win. We had more possession but couldn't create any real chances. Now we have another tough match on Wednesday [against Inter]. We have to win because we don't have any points in the group.

I have a lot of players with a lot of potential. My team is getting better and better, but I prefer a team to a collection of stars. As a manager, you can never depend on one player. If he is injured, sick or thinks 'today I won't work' then you will lose.